https://en.wikipedia.org/wiki/Brandolini%27s_law

The gist of it is that making up bullshit takes almost no energy, whereas refuting that bullshit effectively will be very time-consuming. This is exacerbated by the fact that bullshit is usually packaged in a way that makes it spread way faster by, for example, exploiting social media "engagement" algorithms.

There are corollaries to this. For example, the idiom "a lie can travel halfway around the world before the truth is done tying its shoes."